Jimbo, being the asshole that he is, wanted sons so he could continue his baseball legacy. It was discussed in the past, but he wasn’t thrilled to have so many girls; he has one son and I suppose he’s not an athlete? Or, maybe he is, but won’t make it into the majors. I may be misremembering, but when they were transferring embryos, they had to decide which two to transfer. The female embryos were stronger but they opted to transfer one male embryo (which wasn’t as good quality) in the hopes of having a boy- but that one didn’t make it, ultimately. There was a lot of emphasis on this jerk wanting a boy.
I’m surprised to read this, 50/50 custody is extremely common here in CA; in fact, I seldomly hear otherwise.